Why was Andrew Johnson considered a white supermacist?

Andrew Johnson, the 17th President of the United States, is often considered a white supremacist due to his policies and attitudes towards Reconstruction and race relations. He opposed civil rights advancements for freed slaves, vetoed key legislation aimed at protecting their rights, and expressed racist views that reflected a belief in white superiority. His unwillingness to support measures that would promote racial equality and his alignment with Southern interests during Reconstruction further solidified this perception. Johnson's presidency thus exemplified a commitment to maintaining white dominance in post-Civil War America.